<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        body{
            /*background-color: aqua;
            /*background-color: transparent;*/
            background-image: url(../imgs/2.jpg);
            background-repeat: no-repeat;
            /*background-position: 900px 400px;/* (x y)*/
            /*background-position: center top;/*如果只带一个参数，默认y向为50%*/
            /*background-attachment: fixed;*/
            height: 2000px;
            /*background: rebeccapurple url(imgs/1.jpg) repeat-x fixed 20% 30%;*/
        }
    </style>
</head>
<body>
    
</body>
</html>